Chapter 4. Sprints
Scrum organizes work in iterations or cycles of up to a calendar month called sprints. This chapter provides a more detailed description of what sprints are. It then discusses several key characteristics of sprints: They are timeboxed, have a short and consistent duration, have a goal that shouldn’t be altered once started, and must reach the end state specified by the team’s definition of done.
Sprints are the skeleton of the Scrum framework (see Figure 4.1).
The gray main looping arrow in the figure, which stretches from the product backlog through the sprint ...